Sice the early 1900's, art-deco has been a prominent design style. In fashion, architecture, and visual design, art-deco is a lasting inspiration to artists off all types. These Onyx designs capture the elements of the art-deco trend and turn you into a work of art. A pair of black onyx earrings are an affordable and elegant gift. Always appropriate and always in style, black onyx should be in every jewelry box. Tourmaline is known as the gem of love and commitment. Buy her a pair of pink tourmaline earrings to seal the deal!